题目内容
计算:
(1)(-
)3;
(2)(-
)2•(
)3.
(1)(-
| x3 |
| y2 |
(2)(-
| a2 |
| b4 |
| b2 |
| -a |
(1)原式=-
=-
;
(2)原式=
•(-
)
=-
.
| (x3)3 |
| (y2)3 |
=-
| x9 |
| y6 |
(2)原式=
| a4 |
| b8 |
| b6 |
| a3 |
=-
| a |
| b2 |
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题目内容
| x3 |
| y2 |
| a2 |
| b4 |
| b2 |
| -a |
| (x3)3 |
| (y2)3 |
| x9 |
| y6 |
| a4 |
| b8 |
| b6 |
| a3 |
| a |
| b2 |